TamSeal 7 – Silicate based concrete waterproofing solution


TamSeal 7 is a modified silicate product which acts as a waterproofing solution when applied to concrete. It can improve surface properties such as hardness, permeability, chemical durability and abrasion resistance. It reacts with free calcium in the cured concrete matrix to form a water insoluble calcium silicate hydrate. This forms a permanent waterproof barrier by penetrating cracks and pores within the concrete substrate.

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Key Benefits
  • No re-application or future maintenance required
  • 100% trafficable after the first application
  • If stubborn cracks are present - easy to find and fix. No lifting of membranes required
  • Permanently seals cracks up to 2.0 mm
  • Re-seals future hairline cracks
  • Reduction of chloride diffusion coefficient by up to 90%
  • Water permeability reduced by up to 70%
Typical Applications
  •  Rooftops and podium decks
  •  Car parks
  •  Road and rail bridge decks
  •  Wharf decks and marine structures
  •  Airport runways, taxiways, aprons
  •  Water retaining structures

Specialty Applications

  •  Tiled areas (not terracotta or glass glazed)
  •  Tiled shower recesses
  •  Facades
  •  Pre-cast elements and panels
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